refactor: rewrote ai-tools-nix to llm-agent.nix by numtide

packages/default.nix

@@ -1,8 +1,11 @@
-{ pkgs, lib, beads }:
+{ pkgs, lib, llm-agents }:
 
-{
+let
+  system = pkgs.stdenv.hostPlatform.system;
+  llmPkgs = llm-agents.packages.${system};
+in {
   osgrep = pkgs.callPackage ./osgrep.nix { };
-  opencode = pkgs.callPackage ./opencode.nix { };
-  # Re-export beads from flake input for consistent access
-  beads = beads.packages.${pkgs.stdenv.hostPlatform.system}.default;
+  opencode = llmPkgs.opencode;
+  # Source beads from llm-agents.nix
+  beads = llmPkgs.beads;
 }

packages/opencode.nix

@@ -1,59 +0,0 @@
-{ lib, stdenv, fetchzip, autoPatchelfHook }:
-let
-  version = "1.0.137";
-
-  platformInfo = {
-    x86_64-darwin = {
-      name = "darwin-x64";
-      ext = "zip";
-      hash = "sha256-ZgzvpW8SAN0HP3Qh+aT1S+WrEoXkTZiL8/8z1w9p9Y0=";
-    };
-    aarch64-darwin = {
-      name = "darwin-arm64";
-      ext = "zip";
-      hash = "sha256-w5hs5arVroLtjr9pRAHYXQL+4L5gw1bJVL4DhgvrpLs=";
-    };
-    x86_64-linux = {
-      name = "linux-x64";
-      ext = "tar.gz";
-      hash = "sha256-N8IR3xq/dGF5jPq9/UW8Mu/PnAUb7r+Ox6nge6wKw1M=";
-    };
-    aarch64-linux = {
-      name = "linux-arm64";
-      ext = "tar.gz";
-      hash = "sha256-LwWbTAVnfEmCjUBNf58bgFFVVvDIQVJkLsGtYX+/EfU=";
-    };
-  };
-
-  platform = platformInfo.${stdenv.hostPlatform.system} or (throw
-    "Unsupported system: ${stdenv.hostPlatform.system}");
-in stdenv.mkDerivation {
-  pname = "opencode";
-  inherit version;
-
-  src = fetchzip {
-    url =
-      "https://github.com/sst/opencode/releases/download/v${version}/opencode-${platform.name}.${platform.ext}";
-    hash = platform.hash;
-    stripRoot = false;
-  };
-
-  nativeBuildInputs = lib.optionals stdenv.isLinux [ autoPatchelfHook ];
-
-  installPhase = ''
-    runHook preInstall
-    mkdir -p $out/bin
-    cp opencode $out/bin/opencode
-    chmod +x $out/bin/opencode
-    runHook postInstall
-  '';
-
-  meta = {
-    description = "AI coding assistant CLI from SST";
-    homepage = "https://opencode.ai";
-    license = lib.licenses.mit;
-    mainProgram = "opencode";
-    platforms =
-      [ "x86_64-darwin" "aarch64-darwin" "x86_64-linux" "aarch64-linux" ];
-  };
-}